System and method for controlling water flow in a food waste handling system

• US 7,815,134 B2
• Filed: 10/14/2005
• Issued: 10/19/2010
• Est. Priority Date: 10/14/2005
• Status: Active Grant

• Current Assignee: The Salvajor Company
• Original Assignee: The Salvajor Company
• Inventors: Hohl, Christopher
• Primary Examiner(s): MILLER, BENA B
• Application Number:
  US11/250,769
• Publication Number:
  US 20070084950A1
• Time in Patent Office: 1,831 Days
• Field of Search: 241 46013- 46017, 241/36, 134/115.G, 134/113, 462/3, 462/4
• US Class Current: 241/36
• CPC Class Codes: E03C 1/2665 Disintegrating apparatus specially adapted for installation in waste pipes or outlets disintegrating apparatus per se B02C

Abstract

A control system for minimizing overall water use in a food waste handling system while maximizing flow rate when needed by controlling a flow of water into the handling system based on or in response to a physical presence of an operator. The control system substantially automatically senses, detects, or otherwise determines the presence of the operator, wherein such presence is assumptively associated with use of the waste handling system (i.e., the deposition of waste thereinto), and, in response to said presence, automatically controls the flow of water accordingly and for a pre-established period of time following cessation of said presence in order to facilitate the on-going handling process.

Claims

1. A control system for controlling water flow into a food waste handling system, the control system comprising:

a presence sensor for determining a physical presence of an operator in close proximity with the food waste handling system;

a timer for measuring a pre-established time period;

a first flow control device for providing a first flow of water into the food waste handling system in response to the presence sensor determining the physical presence of the operator and during the pre-established time period as measured by the timer following cessation of said determined physical presence of the operator; and

a second flow control device for providing a second flow of water into the food waste handling system in response to the presence sensor determining the physical presence of the operator, and for terminating said second flow of water approximately simultaneously with the cessation of said determined physical presence of the operator.

2. The control system as set forth in claim 1, wherein the first flow and the second flow are provided into the food waste handling system at substantially the same location.

3. The control system as set forth in claim 1, wherein the first flow and the second flow are provided into the food waste handling system at substantially different locations.

4. A food waste handling system comprising:

a basin;

a processing device connected to the basin for receiving and processing food waste;

and a control system for controlling water flow into the food waste handling system, the control system including—

a presence sensor for determining a physical presence of an operator in close proximity with the food waste handling system;

a timer for measuring a pre-established time period,

a first flow control device for providing a first flow of water into the food waste handling system in response to the presence sensor determining the physical presence of the operator and during the pre-established time period as measured by the timer following cessation of said determined physical presence of the operator, and

a second flow control device for providing a second flow of water into the food waste handling system in response to the presence sensor determining the physical presence of the operator, and for terminating said second flow of water approximately simultaneously with the cessation of said determined physical presence of the operator.

5. The food waste handling system as set forth in claim 4, wherein the first flow and the second flow are provided into the food waste handling system at substantially the same location.

6. The food waste handling system as set forth in claim 4, wherein the first flow and the second flow are provided into the food waste handling system at substantially different locations.

7. The food waste handling system as set forth in claim 4, wherein the processing device includes a disposer device for grinding or shredding the food waste.

8. The food waste handling system as set forth in claim 4, wherein the processing device includes a collector device for accumulating a solid component of the food waste.

9. The food waste handling system as set forth in claim 4, wherein the food waste handling system is a multi-operator system including a trough, and wherein the control system includes a plurality of presence sensors dispersed along a work area associated with the trough.

10. A control system for controlling water flow into a food waste handling system, the control system comprising:

a sensor for detecting an operator in close proximity with the food waste handling system;

a timer for measuring a pre-established time period following cessation of the operator being detected by the sensor;

means for;

(a) providing a first flow of water into the food waste handling system while the sensor detects the operator;

(b) providing the first flow of water into the food waste handling system during the measured pre-established time period; and

(c) terminating the first flow of water upon expiration of the measured pre-established time period; and

means for;

(a) providing a second flow of water into the food waste handling system while the sensor detects the operator; and

(b) terminating the second flow of water when the sensor ceases detecting the operator, the first and second flows of water being terminated at different times.

11. The control system of claim 10, wherein:

the means for providing a first flow of water into the food waste handling system while the sensor detects the operator is;

means for providing a first flow of water into the food waste handling system for the entire duration that the sensor detects the operator; and

the means for providing a second flow of water into the food waste handling system while the sensor detects the operator is;

means for providing a second flow of water into the food waste handling system for the entire duration that the sensor detects the operator.

12. A food waste handling system, comprising:

a basin;

a processing device accessible from the basin for receiving and processing food waste; and

a control system for controlling water flow into the food waste handling system,

the control system comprising;

a sensor for detecting an operator in close proximity with the food waste handling system;

a timer for measuring a pre-established time period following cessation of the operator being detected by the sensor;

means for;

(a) providing a first flow of water into the food waste handling system while the sensor detects the operator;

(b) providing the first flow of water into the food waste handling system during the measured pre-established time period; and

(c) terminating the first flow of water upon expiration of the measured pre-established time period; and

means for;

(a) providing a second flow of water into the food waste handling system while the sensor detects the operator; and

(b) terminating the second flow of water when the sensor ceases detecting the operator, the first and second flows of water being terminated at different times.

13. The food waste handling system of claim 12, wherein the processing device includes a disposer device for breaking up the food waste.

14. The food waste handling system of claim 12, wherein the processing device includes a collector device for accumulating a solid component of the food waste.

15. The food waste handling system of claim 12, wherein the first flow and the second flow are provided into the food waste handling system at substantially the same location.

16. The food waste handling system of claim 12, wherein the means for providing a first flow of water into the food waste handling system while the sensor detects the operator is:

means for providing a first flow of water into the food waste handling system for the entire duration that the sensor detects the operator.

17. The food waste handling system of claim 12, wherein the means for providing a second flow of water into the food waste handling system while the sensor detects the operator is:

means for providing a second flow of water into the food waste handling system for the entire duration that the sensor detects the operator.

18. The food waste handling system of claim 12, wherein:

the means for;

(a) providing a first flow of Water into the food waste handling system while the sensor detects the operator;

(b) providing the first flow of water into the food waste handling system during the measured pre-established time period; and

(c) terminating the first flow of water upon expiration of the measured pre-established time period and the means for;

(a) providing a second flow of water into the food waste handling system while the sensor detects the operator; and

(b) terminating the second flow of water when the sensor ceases detecting the operator, the first and second flows of water being terminated at different times are two separate flow control devices.

19. The food waste handling system of claim 12, wherein at least one flow control device is:

the means for;

(a) providing a first flow of water into the food waste handling system while the sensor detects the operator;

(b) providing the first flow of water into the food waste handling system during the measured pre-established time period; and

(c) terminating the first flow of water upon expiration of the measured pre-established time period and the means for;

(a) providing a second flow of water into the food waste handling system while the sensor detects the operator; and

(b) terminating the second flow of water when the sensor ceases detecting the operator, the first and second flows of water being terminated at different times.

20. The food waste handling system of claim 19, wherein:

the means for providing a first flow of water into the food waste handling system while the sensor detects the operator is;

means for providing a first flow of water into the food waste handling system for the entire duration that the sensor detects the operator; and

the means for providing a second flow of water into the food waste handling system while the sensor detects the operator is;

means for providing a second flow of water into the food waste handling system for the entire duration that the sensor detects the operator.